Exploratory Data Analysis
1.3. EDA Techniques
1.3.3. Graphical Techniques: Alphabetic
188.8.131.52. Autocorrelation Plot
|Autocorrelation Plot for Sinusoidal Model||
The following is a sample autocorrelation plot of
the LEW.DAT data set.
We can make the following conclusions from the above plot.
|Discussion||The plot exhibits an alternating sequence of positive and negative spikes. These spikes are not decaying to zero. Such a pattern is the autocorrelation plot signature of a sinusoidal model.|
|Recommended Next Step||The beam deflection case study gives an example of modeling a sinusoidal model.|